Cline rules

1# Data Model Reference
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3## Entity Types (15)
4concept, decision, pattern, person, file, symbol, event, tool, fact, conversation, reference, implementation, pull_request, merge_request, branch
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6## Relation Types (20)
7relates_to, depends_on, implements, supersedes, contradicts, derived_from, authored_by, decided_in, uses, tests, contains, co_changes_with, preceded_by, blocks, reviewed_by, merged_in_mr, merged_in_pr, touches_file, owns, parallel_with
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9## Key Constraints
10- Entity ID: ULID. Relation unique: (sourceId, targetId, type)
11- batchUpsert dedupes on (name, namespace, type) — merges observations/tags
12- Confidence decay: fact=0.01/day, concept=0.005/day, decision=0.003/day. person/file/symbol never decay
13- Bitemporal: eventTime (when it happened) + ingestTime (when discovered)
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